I personally sift some small improvements classical algorithm, mainly used in the field of image matching, than the classic matching algorithm to improve both speed and accuracy

siftDemoV4
..........\1.gif
..........\2.gif
..........\appendimages.m
..........\basmati.pgm
..........\book.pgm
..........\box.pgm
..........\defs.h
..........\exampleq.m
..........\LICENSE
..........\Makefile
..........\match.c
..........\match.m
..........\README
..........\scene.pgm
..........\showkeys.m
..........\sift
..........\sift.m
..........\siftWin32.exe
..........\tmp.key
..........\tmp.pgm
..........\Untitled2.m
..........\util.c
..........\v1.jpg
..........\v2.jpg

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